676722256513 has 2 divisors, whose sum is σ = 676722256514. Its totient is φ = 676722256512.

The previous prime is 676722256499. The next prime is 676722256559. The reversal of 676722256513 is 315652227676.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 640267227889 + 36455028624 = 800167^2 + 190932^2 .

It is a cyclic number.

It is not a de Polignac number, because 676722256513 - 2¹⁷ = 676722125441 is a prime.

It is not a weakly prime, because it can be changed into another prime (676722256213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 338361128256 + 338361128257.

It is an arithmetic number, because the mean of its divisors is an integer number (338361128257).

Almost surely, 2^676722256513 is an apocalyptic number.

It is an amenable number.

676722256513 is a deficient number, since it is larger than the sum of its proper divisors (1).

676722256513 is an equidigital number, since it uses as much as digits as its factorization.

676722256513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 52.

The spelling of 676722256513 in words is "six hundred seventy-six billion, seven hundred twenty-two million, two hundred fifty-six thousand, five hundred thirteen".